Presentation | 2004/1/22 Layer 2 Buffer Control for Performance Degradation Due to Handover on Wireless TCP Yu SAKAI, Takahiro MATSUDA, Miki YAMAMOTO, |
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Abstract(in English) | In this paper, we discuss performance of TCP over wireless link with ARQ for bit error and packet forwarding protocol for handover-caused packet loss. We have shown that in an environment where both bit error and handover occur, handover degrades the performance of TCP, because frames stored in a link layer buffer are discarded when a handover occurs. In this paper, we propose two buffer control approaches to resolve the above problem depending on applicability of cross-layer operation between layer 2 (ARQ) and layer 3 (packet forwarding). The first approach makes use of cross-layer operation. In this approach, layer 3 buffer operates with layer 2 buffer. When a handover occurs, stored datagrams and layer 2 frames are forwarded to the new base station, which prevents bursty packet loss. The other approach can be applied even for the case that cross-layer operation is not applicable. In this approach, arrival frames are randomly discarded like RED operation, which reduces stored packets in a base station. Our results indicate that the integrated design with taking account of both bit error and handover is required for the future mobile Internet. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | wireless / TCP / ARQ / handover / buffer control |
Paper # | NS2003-227 |
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Committee | NS |
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Conference Date | 2004/1/22(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Registration To | Network Systems(NS) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Layer 2 Buffer Control for Performance Degradation Due to Handover on Wireless TCP |
Sub Title (in English) | |
Keyword(1) | wireless |
Keyword(2) | TCP |
Keyword(3) | ARQ |
Keyword(4) | handover |
Keyword(5) | buffer control |
1st Author's Name | Yu SAKAI |
1st Author's Affiliation | Graduate School of Engineering, Osaka University() |
2nd Author's Name | Takahiro MATSUDA |
2nd Author's Affiliation | Graduate School of Engineering, Osaka University |
3rd Author's Name | Miki YAMAMOTO |
3rd Author's Affiliation | Graduate School of Engineering, Osaka University |
Date | 2004/1/22 |
Paper # | NS2003-227 |
Volume (vol) | vol.103 |
Number (no) | 624 |
Page | pp.pp.- |
#Pages | 4 |
Date of Issue |